Q7. Ten years later, the researchers return to Niijima Island and they notice that there are members of the same land snail species, but they have a pink shell. What are the two most likely explanations for this shell color new to Niiima? Choose the 2 best answers A random mutation in a snail that resulted in a pink shell. b. The bottleneck effect occurred among the snail population on Niijima c. Genetic Drift d. Disruptive selection over many generations e. Some snail eggs from a neighboring island that has pink snails were transported to Niijima on the feet of migratory ducks.

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A: Answer : Most populations do not conform to Hardy-Weinberg equilibrium (HWE) due to several…

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A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: 1. List three places outside of Africa where sickle-cell anemia is fairly common in the indigenous…

A: A population is described as a group of individuals of the same species living and interbreeding…

Q: Q3) Why can we say that variations in human skin color are the result of natural selection in…

A: Introduction :- Variations refer to differences or diversity among individuals or populations within…

Q: Please help with the following: The EDAR gene carries one of the most highly differentiated SNPs in…

A: Ectodysplasin-A receptor (EDAR) is a cell surface receptor protein that is involved in the…

Q: As scientists in Canada traveled further north into colder climates measuring the size(mass) of…

A: Bergmann's rule is an ecogeographical rule that claims that larger creatures are found at higher…

Q: Stabillizing selection means

A: 3 . The extreme population have a lesser chance of survival than the median members In Stabilizing…

Q: When we take, say, 100 individuals of a species of beetle from the wild and place them in a new…

A: Each environment that an organism inhabits is distinct from the others. Its natural habitat is…

Q: 100 75 C 25 A. 25 50 75 100 125 MILLIONS OF YEARS AGO 1. What is the rate of evolution of this gene…

A: The rate of evolution estimates how much an evolutionary lineage has changed over time.  MacFadden's…

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A: White recessive genotype (aa) = 35% or 0.35Dominant genotype (AA) =  ?

Q: Choose the best below ? The northern elephant seal went through a severe population declineas a…

A: Bottleneck: Hunting caused reduction in population to minimum when hunting stopped population…

Q: Imagine an altruistic behavior where the direct fitness cost to a donor is 6 and the indirect…

A: When an organism incurs a cost including the possibility of death in order to improve the fitness of…

Q: In domestic cats, the allele for short hair (L) is dominant and the allele for long hair (I) is…

A: The Hardy-Weinberg equilibrium or Hardy-Weinberg law is a fundamental law for population genetics…

Q: 12. Which can bring new traits to a population and why? 1. natural selection - because it increases…

A: what is mutation ? Mutation is change in the genetic material of a cell(organism's DNA) that can be…

Q: 1.Describe the ways that gene number or gene position on a chromosome, might be altered? What…

A: Chromosomes are defined as the thread-like structures present inside the nucleus and will carry…

Q: 2. Jean-Baptiste Lamarck's explanation for the evolution of long-necked giraffes from shorter-…

A: Evolution is defined as the change in trait of an individual over a period of time.

Q: A. a population of lizards may be brown or red. The temperature of the eggs determines the color of…

A: Natural selection is the non random process that drives evolution.

Q: Why is the Hardy Weinberg law of equilibrium important to a study of evolutionary processes?  a. it…

A: There are some important points about Hardy Weinberg law : It is a rule that relates allelic and…

Q: 15. Which of the following is a basic requirement for natural şelection to be an effective…

A: 15. A population must exhibit some genetic variability - genetic variation helps us to create…

Q: 21. What is an example of microevolution? Group of answer choices a.Anole lizards getting stickier…

A: Species diversity is a measure of biological variety seen in a certain ecological community,…

Q: 1a. Describe three types of genetic variants and briefly describe the mechanisms that generate them…

A: In the field of genetics, the concept of linkage disequilibrium (LD) plays a pivotal role in…

Q: 5. a. Is genetic drift a gain or loss in heterozygosity?  b. What population is most effected by…

A: Genetic drift is a mechanism of evolution that describes the random fluctuations in allele…

Q: A form of learning disabilities and speech impairment results from a recessive mutation in the…

A: Hardy Weinberg Equilibrium explains how population does not evolve and allele frequencies remain…

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A: Cladogenesis is splitting of one parent into two different species. Anagenesis is formation of new…

Q: Q8. What is the most likely explanation for why different shell colors are present in different…

A: Snails hide in their shells, when they are threatened. The shell protects snails from predators, and…

Q: TABLE 1 Observed (O) versus expected (E) mc1r genotypes of black bears (Ursus americanus) by…

A: a. To calculate allelic and genotypic frequencies for each population:For population 1 (Islands with…

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Q: In 1959 Daniel Yuh set up a long-term study of cataloging the blood types of a group of foragers in…

A: Genetics is a term that refers to the study of genes and their roles in inheritance - in other…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.